Suction cleaner



Sept. 20, 1932. w. c. DAVIDSON SUCTION CLEANER Filed April 18, 1929 I I N VEN TOR. Wife: 6'. Dandaon v ATTORNEY.

. Patented Sept. 20, 1932 UNITED STATES WALTER G. DAVIDSON, OF NORTH CANTON, OHI ,A SSIGNOR TO THE HOOVER PANY, A CORPORATION OF OHIO suo'rroir PATENT OFFICE CLEANER Application filed April 18, 1929. Serial No. 356,088.

This invention relates to suction cleaners in general and particularly to dust bags for suction cleaners.

The invention consists in the novel construction of a substantially soft and open filtering material which normally lacks sufii-- cient tensile strength to stand up under ordinary usage but which has excellent filtering qualities for separating dust from air.

The object of the invention is to provide a bag made from a substantially fragile but highly eflicient filtering material, which is provided with novel means of reinforcement to take up the stretch and strain normally placed on the bag due to its connection with the cleaner 0 crating handle. 1

Another 0 ject is to provide a dust bag made from a soft and substantially open filtering material which is reinforced lon itudinally thereof by strips which extend su stantially from the neck of the bag to the upper, end thereof.

Another object is to provide a substantially orous filtering medium which is reinforced y longitudinal strips, andwhich is also rovided ith additional reinforcing at the ot-- tom and upper end of the bag where the greatest'pull and stress occurs. I p

Another object is to provide a cotton felt dust bag which is reinforced longitudinally thereof by means of paper strips; which 1s reinforced at its throat by a paper patch, and also which has a paper reinforcement at the upper or open end thereof where the closing clip is attached to the bag securing the bag to the cleaner handle.

The invention comprises, in general, a dust bag made of an open filter material such as cotton felt and which has strips of paper applied to the bag parallel with the longitudinal axis thereof. The bag also has a reinforced patch at its throat to takeup the wear where the bag may touch the fioor when the sweeper is being used under low places or articlesof' furniture. Paper reinforcement is also ap-.

plied at the upper open end of the bag so that the bag may be easily emptied if desired.

The patch at the upper end reinforces the bag and equally distributes any strainwhich may occur, to the longitudinalreinforcing membersand the reinforced throat.

The accompanying drawing shows a se-' lected embodiment of the invention and the views therein are as follows:

Fig. 1 is a detail side elevation of the bag showing the manner in which it is applied to a suction cleaner. I i y Fig. 2 is a detail sectional View on the line 220fFig.1.

Referring to the drawing, 5 designates generally a neck or discharge outlet of a suction cleaner to which bag clamping means 6 are operatively arranged for securing'the neck 7 of the dust bag 8' to the outlet 5. The bag proper is preferably made from a cotton felt material 9 and a plurality of longitudinal paper strips 10 may be suitably secured to the cotton felt to reinforce the bag.

These strips run from the neck? to the upper end 11 of the bag so that all strains occurring on the bag due to operating the cleaner, will be transmitted to the reinforcing stri s. The upper end of the bag is preferably eft open at 12 so that the bag may be easily emptied when required. This 0 en end may be closed by means of a clip or bi: er-

made of paper, or of the same kin of material as the longitudinal strips 10.

Another atch 17 is provided at the upper end of the ag so that the direct pull which occurs at the upper end of the bag will be transmitted along the longitudinal reinforcing strips 10. A bag of this type has sufiicient strength to stand up under ordinary usage and at the same time permits the use of cotton felt which provides one of the best filtering mediums known..

The bag may be folded along the creases 18 shown in dotted lines in Fig. 1 so that durlines described a great many portions extending substantially the full length of the bag and connecting said other portions.

, Signed at North Canton, in the county of Stark and State of Ohio, this 8th day of April, 1929.

WALTER. o. DAVIDSON.

otherwise destroyed after a reasonable time and it is necessary to keep a supply on hand.

Thelbag, however, is provided with an 0 en-,

ing at its upper end so that it can be use for several cleanings and need not be destroyed until the bag actually wears out.

Changes may be made in the form, construction and arrangement of the parts without departing from the spiritof the invention or sacrlficing any of the advantages.

thereof and the right is hereby reserved to I make all such changes as fairly fall within the scope of the following claims.

The invention is herebyclaimed as follows: 1. A dust bag for suction cleaners comprising a body portion made of a substantially 1 open filtering material and having a reduced neck at its lower end andan opening at the upper end thereof, a reinforcing member secured on the bottom of the bag near the neck thereof, another reinforcing member arranged about said opening, and lon 'tudinal ing substantially .2. A dust bag for suction cleaners comprising a body portion made of a cellulose fiber felt material, a paper patch reinforcement arranged at the lower end ofthe bag and at the bottom thereof, said bag having an open upper end, a a'per patch reinforcement arranged around said 0 en end, and lon 'tudinal reinforcin mem ers extending su stantially' from en to end of said bag.

3. A dust bag for suction cleaners comprising a body portion made of cellulose fiber felt and having a. reduced neck and an open upper end, a reinforcing patch member secure to the, felt body at the lower end of said ha and on thebottom thereof, a paper pate member arranged around the open end, longitudinal rein orcing members arran ed on the body and extending from the ottom reinforcements secured to the bag an extends the full length thereof and spaced from each other.

, patch to the upper atch, and other reinforcing members'exten -ng substantially the full length of said he 4. A dust bag ir suction cleaners formed of loosely matted air porous material and;

spaced paperreinforcements secured to said" loosely matted material and extending stantiall the full length of the bag.;

sub-z,

5. A ust bag for suction; cleaners comprising a body ortion formed of cellulose fiber felt materia and having a reduced neck, and reinforcing means secured to said bag including a portion of substantial area adjacent said 1 neck, a portion of substantial area adjacent the upper end of said bag and laterally spaced 

